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    [Tutorial] Create a (TIN) from Surveyed Pts - using SU only

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    • GaieusG Offline
      Gaieus
      last edited by

      @jmqrsq said:

      I have tried to download the delaunay2.rb script but the links do not work anywhere. can someone send it to me? i can provide an email addy. thanks!

      There is a confusion (probably due to a typo somewhere) because this script sometimes is referred as "delaunay.rb" while other times as "delauney.rb".

      Here is a post where lapx aslo asked for the delauney.rb (which I believe the proper name is) and I posted a copy of it.
      Try that, hope it works.

      Gai...

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      • E Offline
        eugenesr
        last edited by

        Here is the file location of the script:
        http://www.crai.archi.fr/RubyLibraryDepot/Ruby/delaunay.rb
        http://www.crai.archi.fr/RubyLibraryDepot/Ruby/delaunay.rb

        and here is the Ruby Script Index page http://www.crai.archi.fr/RubyLibraryDepot/Ruby/

        Eugene

        /Fire Fighter! Funny job for an artist, no?/
        HP laptop running XP

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        • A Offline
          andymaw
          last edited by

          Not been able to check on this for a while....

          I've had a look at the drawing full of spot heights that I have and they are all at the correct z value....however, it is just text, not crosses etc.

          Is there a quick way to create these crosses where the text is? I had a look at that autolisp, it looks mind boggling!

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          • AnssiA Offline
            Anssi
            last edited by

            This might be a bit OT as you need AutoCad...

            I took an old Autolisp program I once made and modified it to do this:

            Scan a selection for text entities. Read the text and convert it to a number and multiply it with an user supplied factor (for unit conversions). Draw a line from the text insertion point to the text upper right corner, using the text as the Z height of the line endpoints. Repeat until all texts in the selection have been processed.

            The result should be a cloud of small lines that the SU Sandbox from Contours tool can cover with a surface.

            How it works:

            • copy the txt23d.lsp file somewhere where Autocad can find it. It should work if put in the same directory as the drawing file to process.
            • type (load "txt23d") to the AutoCad command line and press Enter
            • type txt23d and Enter
            • It asks the user for a selection
            • It asks the user for a Z scale factor

            Disclaimer: The lisp has almost none error checking. Scale factor should reset itself to 1 if you forget to give one. It's not rocket science - the real height point may be not exactly at the text insertion.

            Anssi

            TXT23D.zip

            securi adversus homines, securi adversus deos rem difficillimam adsecuti sunt, ut illis ne voto quidem opus esset

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            • A Offline
              andymaw
              last edited by

              That did the job! Thanks so much for that. Just got to find the time to put the guide points into SU and it should be sorted.

              Cheers again

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              • R Offline
                Rob D
                last edited by

                I could really, really, really do with that lisp script... but only have acad LT 😢

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                • V Offline
                  VicBStard
                  last edited by

                  How do I get a spreadsheet or comma separated x,y,z points into SU without having to actually position points manually? Is there a way to automate this?

                  Cheers

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                  • GaieusG Offline
                    Gaieus
                    last edited by

                    Hi,

                    Sure, use Didier's Cloud plugin; works great.

                    Gai...

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                    • M Offline
                      messire
                      last edited by

                      Hi all
                      Its getting confusing: the script is installed and delaunay2 installed.
                      The file is imported from an autocad file with simple points that i put in Z coordinates in acad.
                      When imported in SU they appears as little crosses ( cannot succeed in zooming on them to see exactly), and when i try to triangulate them, the ruby says " Some objects of the selection aren't construction points". How is this possible since they are all similar and all points?
                      Nothing happens then..

                      Is there any way i can resolve this?
                      I've put a sample from points ( acad) here if anyone has a hint!
                      http://dl.dropbox.com/u/2095112/3Dpoints.dwg

                      thnx
                      Nils

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                      • M Offline
                        messire
                        last edited by

                        Good lord!
                        I've found it!
                        3D points from surveyors are often blocks in acad. When i imported them, i forgot that, and they were in SU still components!.
                        A simple select all + explode solved the issue and made it possible to triangulate!

                        Relief!

                        Sorry for the buzz!
                        N

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                        • GaieusG Offline
                          Gaieus
                          last edited by

                          @messire said:

                          A simple select all + explode solved the issue and made it possible to triangulate!

                          Yup - I was already starting to write this up - good that I read the very last post.
                          😉

                          Gai...

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                          • mitcorbM Offline
                            mitcorb
                            last edited by

                            I am tagging this for future reference.
                            mitcorb

                            I take the slow, deliberate approach in my aimless wandering.

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                            • P Offline
                              ProfKi
                              last edited by

                              I'm trying to follow this thread to create a 3D landscape. I have the survey points or 'crosses' in SketchUp, all in the correct x,y,z positions. I selected all and exploded the components without any problem. I then reselected all the crosses, and selected the 'Set Centre Point' - but it puts a single construction point in the middle of the drawing - not one at the centre of each cross.

                              I'm using SU Pro ver 7.1.6860

                              Can anyone see what I'm doing wrong?

                              Grateful for any pointers!!

                              D...

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                              • GaieusG Offline
                                Gaieus
                                last edited by

                                Hi D...

                                Do the other way round (provided that those components er the instances of the same component definition) as the order is important:

                                1. Edit one of them (double click)
                                2. Set the centerpoint inside in that component - now if they are all the same components, each should be updated instantly with this centerpoint in them
                                3. delete the geometry - i.e. the "crosses" - leaving only the centerpoint inside the component
                                4. NOW exit the component and explode all...

                                Gai...

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